locky | 1b0528fcbbc8476784150df855cdb2410fbc08ca825accf1622160c5900523be

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16/11/2024, 02:28

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General

Target
2024-11-16_1c2428365c1bcf5ea170a949a75a4e7e_locky.exe
Size 142KB
Sample241116-cybt5askcl
SHA256 1b0528fcbbc8476784150df855cdb2410fbc08ca825accf1622160c5900523be
MD5 1c2428365c1bcf5ea170a949a75a4e7e
SHA1 207b67aa344875ae4cf2e660dc0c55e8e6179f47
SHA512 73d97bd231adc1075c7320071bb848ee1b009fd99beed78d4194d3f06e80bb26792d7722bcd828823cc3a7302b5e39f6c0c69f434b2ee2c02aec8d2c44ce03fa
SSDEEP 3072:bok+l9BrtPYPsZjRGRgVmJdfxT+pkJAKnecZeuv0v:bok+l5BZRGRBJ1xT2kJ7ecg1v
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

locky locky_osiris defense_evasion discovery ransomware

Malware Config

Signatures

Locky
Ransomware strain released in 2016, with advanced features like anti-analysis.
ransomware locky
Locky (Osiris variant)
Variant of the Locky ransomware seen in the wild since early 2017.
ransomware locky_osiris
Locky family
locky
Locky_osiris family
locky_osiris

Deletes itself 1 IoCs

pid	Process
2080	cmd.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\DesktopOSIRIS.bmp"	2024-11-16_1c2428365c1bcf5ea170a949a75a4e7e_locky.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-16_1c2428365c1bcf5ea170a949a75a4e7e_locky.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DllHost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies Control Panel 2 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Control Panel\Desktop\WallpaperStyle = "0"	2024-11-16_1c2428365c1bcf5ea170a949a75a4e7e_locky.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Control Panel\Desktop\TileWallpaper = "0"	2024-11-16_1c2428365c1bcf5ea170a949a75a4e7e_locky.exe

Modifies Internet Explorer settings 1 TTPs 36 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "437886039"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000b3e8f15f634dfc43bfa5c3a2648d88c4000000000200000000001066000000010000200000007d680b8c6192f7e7ad993a856e30d6e476fccbe7414576b9273775e798a341d3000000000e8000000002000020000000a17e3447a000c1130ed8186224e9b209fac13b0a075ead428f00b128e89c8f0d20000000b34d0132d91ad058bea4a95d9ed446c032aa62391d3c3ca555028b8fe88edc91400000005ac398496ebb290973dbc85aa13d63e6671ccd71d91e40b3e317f9dc104e1c72a7950fa6b18357c76df298d2b00ddf0e11ef0068ba1ba2dd69bbb2d9dc5b7976	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{9D16E911-A3C2-11EF-B9BB-7694D31B45CA} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = a025b271cf37db01	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2636	iexplore.exe
2724	DllHost.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2636	iexplore.exe
2636	iexplore.exe
2612	IEXPLORE.EXE
2612	IEXPLORE.EXE
2724	DllHost.exe
2724	DllHost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2552 wrote to memory of 2636	2552	2024-11-16_1c2428365c1bcf5ea170a949a75a4e7e_locky.exe	33
PID 2552 wrote to memory of 2636	2552	2024-11-16_1c2428365c1bcf5ea170a949a75a4e7e_locky.exe	33
PID 2552 wrote to memory of 2636	2552	2024-11-16_1c2428365c1bcf5ea170a949a75a4e7e_locky.exe	33
PID 2552 wrote to memory of 2636	2552	2024-11-16_1c2428365c1bcf5ea170a949a75a4e7e_locky.exe	33
PID 2636 wrote to memory of 2612	2636	iexplore.exe	35
PID 2636 wrote to memory of 2612	2636	iexplore.exe	35
PID 2636 wrote to memory of 2612	2636	iexplore.exe	35
PID 2636 wrote to memory of 2612	2636	iexplore.exe	35
PID 2552 wrote to memory of 2080	2552	2024-11-16_1c2428365c1bcf5ea170a949a75a4e7e_locky.exe	36
PID 2552 wrote to memory of 2080	2552	2024-11-16_1c2428365c1bcf5ea170a949a75a4e7e_locky.exe	36
PID 2552 wrote to memory of 2080	2552	2024-11-16_1c2428365c1bcf5ea170a949a75a4e7e_locky.exe	36
PID 2552 wrote to memory of 2080	2552	2024-11-16_1c2428365c1bcf5ea170a949a75a4e7e_locky.exe	36

C:\Users\Admin\AppData\Local\Temp\2024-11-16_1c2428365c1bcf5ea170a949a75a4e7e_locky.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-16_1c2428365c1bcf5ea170a949a75a4e7e_locky.exe"
1⤵
- Sets desktop wallpaper using registry
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
PID:2552
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\DesktopOSIRIS.htm
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2636
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2636 CREDAT:275457 /prefetch:2
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:2612
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\2024-11-16_1c2428365c1bcf5ea170a949a75a4e7e_locky.exe"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2080

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

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